implemented #242

src/common/command_line.h

@@ -152,6 +152,13 @@ namespace command_line
 
   template<typename F>
   bool handle_error_helper(const boost::program_options::options_description& desc, F parser)
+  {
+    std::string stub_err;
+    return handle_error_helper(desc, stub_err, parser);
+  }
+
+  template<typename F>
+  bool handle_error_helper(const boost::program_options::options_description& desc, std::string& err, F parser)
   {
     try
     {
@@ -159,6 +166,7 @@ namespace command_line
     }
     catch (std::exception& e)
     {
+      err = e.what();
       std::cerr << "Failed to parse arguments: " << e.what() << std::endl;
       std::cerr << desc << std::endl;
       return false;

src/gui/qt-daemon/application/mainwindow.cpp

@@ -729,14 +729,26 @@ void qt_log_message_handler(QtMsgType type, const QMessageLogContext &context, c
 bool MainWindow::init_backend(int argc, char* argv[])
 {
   TRY_ENTRY();
-  if (!m_backend.init_command_line(argc, argv))
+  std::string command_line_fail_details;
+  if (!m_backend.init_command_line(argc, argv, command_line_fail_details))
+  {
+    this->show_msg_box(command_line_fail_details);
     return false;
+  }
 
   if (!init_window())
+  {
+    this->show_msg_box("Failed to main screen launch, check logs for the more detais.");
     return false;
+  }
 
   if (!m_backend.init(this))
+  {
+    this->show_msg_box("Failed to initialize backend, check debug logs for more details.");
     return false;
+  }
+
+
 
   if (m_backend.is_qt_logs_enabled())
   {

src/gui/qt-daemon/main.cpp

@@ -64,9 +64,9 @@ int main(int argc, char *argv[])
   MainWindow viewer;
   if (!viewer.init_backend(argc, argv))
   {
-    static_cast<view::i_view*>(&viewer)->show_msg_box("Failed to initialize backend, check debug logs for more details.");
     return 1;
   }
+
   app.installNativeEventFilter(&viewer);
   viewer.setWindowTitle(CURRENCY_NAME_BASE);
   viewer.show_inital();

src/wallet/plain_wallet_api.cpp

@@ -201,7 +201,8 @@ namespace plain_wallet
     args[1] = const_cast<char*>(argss_1.c_str());
     args[2] = const_cast<char*>(argss_2.c_str());
     args[3] = nullptr;
-    if (!(ptr->gwm.init_command_line(3, args) && ptr->gwm.init(nullptr)))
+    std::string command_line_fail_details;
+    if (!(ptr->gwm.init_command_line(3, args, command_line_fail_details) && ptr->gwm.init(nullptr)))
     {
       LOG_ERROR("Failed to init wallets_manager");
       return GENERAL_INTERNAL_ERRROR_INIT;

src/wallet/wallets_manager.cpp

@@ -152,7 +152,7 @@ bool wallets_manager::do_exception_safe_call(guarded_code_t guarded_code, error_
 }
 
 
-bool wallets_manager::init_command_line(int argc, char* argv[])
+bool wallets_manager::init_command_line(int argc, char* argv[], std::string& fail_message)
 {
   TRY_ENTRY();
   po::options_description desc_cmd_only("Command line options");
@@ -197,9 +197,8 @@ bool wallets_manager::init_command_line(int argc, char* argv[])
   po::options_description desc_options("Allowed options");
   desc_options.add(desc_cmd_only).add(desc_cmd_sett);
 
-
-  
-  bool coomand_line_parsed = command_line::handle_error_helper(desc_options, [&]()
+  std::string err_str;
+  bool command_line_parsed = command_line::handle_error_helper(desc_options, err_str, [&]()
   {
     po::store(po::parse_command_line(argc, argv, desc_options), m_vm);
 
@@ -230,23 +229,29 @@ bool wallets_manager::init_command_line(int argc, char* argv[])
     return true;
   });
 
-  if (!coomand_line_parsed)
+  if (!command_line_parsed)
   {
     std::stringstream ss;
     ss << "Command line has wrong arguments: " << std::endl;
     for (int i = 0; i != argc; i++)
       ss << "[" << i << "] " << argv[i] << std::endl;
     std::cerr << ss.str() << std::endl << std::flush;
+
+    fail_message = "Error parsing arguments.\n";
+    fail_message += err_str + "\n";
+    std::stringstream s;
+    desc_options.print(s);
+    fail_message += s.str();
     return false;
   }
 
   m_qt_logs_enbaled = command_line::get_arg(m_vm, arg_enable_qt_logs);
   m_qt_dev_tools = command_line::get_arg(m_vm, arg_qt_dev_tools);
-
   return true;
   CATCH_ENTRY2(false);
 }
 
+
 void terminate_handler_func()
 {
   LOG_ERROR("\n\nTERMINATE HANDLER\n"); // should print callstack

src/wallet/wallets_manager.h

@@ -89,7 +89,7 @@ public:
 
   wallets_manager();
   ~wallets_manager();
-  bool init_command_line(int argc, char* argv[]);
+  bool init_command_line(int argc, char* argv[], std::string& fail_message);
   bool init(view::i_view* pview_handler);
   bool start();
   bool stop();